Helmet with releasable mounting mechanism



FIG. 1 is perspective view of a helmet with releasable mounting mechanism, showing my new design;

FIG. 2 is a left-side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan elevational view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a helmet with releasable mounting mechanism, as shown and described. 